PHP - 讀取EXCEL內容 存入數據庫

<?php
//設置請求頭
header("Content-Type:text/html;charset=utf8"); 
header("Access-Control-Allow-Origin: *"); //解決跨域
header('Access-Control-Allow-Methods:GET');// 響應類型  
header('Access-Control-Allow-Headers:*'); // 響應頭設置 
//連接數據庫
$dbms='mysql';     //數據庫類型
$host='XXX'; //數據庫主機名
$dbName='XXX';    //使用的數據庫
$user='root';      //數據庫連接用戶名
$pass='XXX';          //對應的密碼
$dsn="$dbms:host=$host;dbname=$dbName";

try {
    $dbh = new PDO($dsn, $user, $pass); //初始化一個PDO對象
    echo "連接成功<br/>";
} catch (PDOException $e) {
    die ("Error!: " . $e->getMessage() . "<br/>");
}

set_time_limit(0);
error_reporting(0);
// https://codeload.github.com/PHPOffice/PHPExcel/zip/1.8下載壓縮包
include './PHPExcel-1.8/Classes/PHPExcel/IOFactory.php';
include './PHPExcel-1.8/Classes/PHPExcel.php';
$inputFileName = 'read.xls';
// date_default_timezone_set('Asia/Shanghai');
// 讀取excel文件
try {
    $inputFileType = PHPExcel_IOFactory::identify($inputFileName);
    $objReader = PHPExcel_IOFactory::createReader($inputFileType);
    $objPHPExcel = $objReader->load($inputFileName);
} catch(Exception $e) {
    die('加載文件發生錯誤："'.pathinfo($inputFileName,PATHINFO_BASENAME).'": '.$e->getMessage());
}
// 確定要讀取的sheet
$sheet = $objPHPExcel->getSheet();
// 取得總行數 
$highestRow = $sheet->getHighestRow(); 
// 取得總列數
$highestColumn = $sheet->getHighestColumn();
// 獲取行的數據
for($j=2;$j<=$highestRow;$j++){     
    $str="";
    //從A列讀取數據
    for($k='A';$k!=$highestColumn;$k++){ 
        $str .=$objPHPExcel->getActiveSheet()->getCell("$k$j")->getValue().'|*|';//讀取單元格
    } 
    $strs = explode("|*|",$str);
    // echo("<pre>");
    // print_r($strs);
    echo $strs[2] . "<br />";
    $sql  = " insert into ec_tank_rule ( ";
    $sql .= " A, ";
    $sql .= " B, ";
    $sql .= " C ";
    $sql .= "  values ( ";
    $sql .= " '$strs[1]', ";
    $sql .= " '$strs[2]', ";
    $sql .= " '$strs[3]' ";
    $sql .= " ) ";
    $count = $dbh->exec($sql);
}
?>